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Old 04-05-2012, 06:02 PM
mtmower's Avatar
mtmower mtmower is offline
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Join Date: May 2008
Location: North Western Montana
Posts: 1,114
Hydo Reservior Gushing Fluid

PJ I'm concerned. My 66" XR7 Super Z just got its 1000 hr hydro service. I used the factory filter, added the correct amount of luberizol (sp?)(what is this wonderful snake oil anyway?) and filled the system with Amsoil. Bled the system parked it. Topped it up the following day. I installed the bagger (3) system and JRCO 60" thatch rake on it for the first time and used it on one yard and smelled some hot oil. Saw some oil had pushed by the reservoir cap and just thought I had over filled it and when it got hot it expanded and pushed out the excess. Next morning check fluids again and found the fluid level about an inch lower than the inch mark it should have been at. It was basically at the bottom of the screen insert. I topped it up again and it pushed it back out to the same point on the next couple yards. I'm guessing that I'm just pushing the hydro system harder than I had before but my early 60" standard deck with the same set up didn't have this problem.

On another note, what tire psi should one run when adding the bagger system. Couldn't find any recommendations in the manual. Deck cutting height is way off, which I can adjust for, and tires really flex like they might roll off the rim (front). I do have flex forks which is not helping the issue. I'm running 12 psi right now.

Thanks in advance.
Old 04-09-2012, 12:32 PM
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mowerconsultant mowerconsultant is offline
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Join Date: Feb 2000
Location: Syracuse, NY
Posts: 9,757
Lubrizol is a Zinc additive to keep the oil "sticky" and sticking to the components in the hydro system so you don't have "dry" start ups with the system when you fire up the engine.
You do not use Lubrizol with synthetic oils, it sounds like you may have though, which would cause foaming of the oil and expansion in the reservoir.
You also may still have had some air in the system.
As to the tire pressure with the catcher, start at 10 psi and add a couple psi to you feel comfortable with it and it still has good traction.

Former Bad Boy and Hustler Sales Representative
Old 04-09-2012, 04:33 PM
mtmower's Avatar
mtmower mtmower is offline
LawnSite Bronze Member
Join Date: May 2008
Location: North Western Montana
Posts: 1,114
I did two previous hydro changes at 45 hrs with syn. (mobile on) and lubrizol with no know problems. I'll top is up again and watch.

I ended airing the tires up up to 15 psi all the way around and it seems pretty happy.

Old 04-12-2012, 02:24 PM
Husqman Husqman is offline
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Join Date: Jun 2001
Location: Tonkawa,Ok.
Posts: 42
The oil should be just touching the bottom of the screen sounds to me like you might be over filling the tank.

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